Means for effecting upward draft in privies



(No Model.)

P. BAR'DON. MEANS FOR EFFECTING UPWARD DRAFT 1N PRIvIBs, GOMMODES', &c'.

Patented Nov. 2,1886.

172 we ntow Wyn/01M N PETERS.'FhOlQ-LRMQVIPHQI, Washington. D. C.

fecal matter; B, a seat; 0, a draft flue or pipe erably of an oval form, and measures, for a diameter'of the aperture b stands centrally structing air and gas passages for privies, commodes, water-closets, and other analogous UNITED STATES PATENT OFFICE.

PROSPER BARDON, OF VVACO, TEXAS.

MEANS FOR EFFECTING UPWARD DRAFT lN PRIVIES,.COMMODES, &c.

SPECIFICATION forming part of Letters Patent No. 3511731, dated November 2, 1886.

Application fi'ed May 4, 1886. Serial No. 901,049. (No model.)

To all whom it mayconcern:

Be it known that I, PeosPER' BARDON, a citizen of the United States, residing at Waco, in the county of McLennan and State of Texas, have invented new and Improved Means for Efi'ectin g Upward Draft in Privies, Oommodes, Water-Closets, &c., of which the following, in connection with the accompanying drawings, is a specification.

My invention consists in a novel plan of constructures, whereby the noxious gases created therein are efi'ectually conducted away from the room or building in which they are used.

. In the accompanying drawingslhave shown one practical means for illustrating the operation of my invention, in which- Figure 1 is a vertical central section through an improved privy or commode. Fig. 2.is a top view of the same/the cover of the seataperture being removed. Fig. 3 is a diagram illustrating a way in which my invention may be employed in connection with adjacent privies or commodes having united air and gas passages.

' A represents a vessel for the reception of for conveying theair and gases away from the vessel A.

The vessel A is provided with an upper opening, a, in its top a, which opening is made nearly as large as the diameter-of said top. The supporting ledge or chime a" of the vessel A is made of sufficient height above the top a to firmly hold therein an annular downwardly-projecting rim, 1), of the seat,which rim forms'a horizontal chamber below the upper edge of the ledge or chime and between the top a and seat B. At the rear end of said chamber, and in communication therewith,the draft-flue O is applied, as shown. The aperture or openingb" of the seat is circular, prefgiven-sized privy or commode, ten inches by seven inches, while the receptacle A measures twenty-two inches in diameter. The longest between the sides of the seat, and is parallel with the same. The front portions of said opening I) and of the opening a stand about vertically opposite to each other, and closely behind the rear portion of the opening 6 a horizontal foot portion, 0, of the draft flue or pipe 0 is suitably attached to the seat B. I This foot portion 0 opens at cinto' the receiving-vessel A with an area of six inches by six and one-half inches, which is also the area of the pipe 0, which in length or height should at least be ten feet, in order to be effective; as a draft pipe or flue.

from whence they, with the atmospheric air,-

are drawn by the more powerful draft of the fine or pipe 0 into the foot portion a and upinto said pipe or flue. The first rush of the atmospheric air into the receiving-vessel would tend to cause portions of the gases to be crowded up through the opening b" of the seat, and thus in a measure defeat the object of the invention,were not the chamber b pr'ovided,'as shown; but this chamber receives such portions of the gases as cannot readily pass into the draft fine or pipe, and retains them below the opening I) until they find their way into the said flue or pipe. After a steadydraft has become established in the pipe 0 the atmosphere of the room containing the commode gradually enters the receiving-vessel through the opening I)", mingles with the gases therein,

and, thus becoming rarefied to a high degree, rises as a regular current along with the gases from the fecal matter, and passes up into the fine or pipe 0 and out into the open atmosphere, this going on until the creation of gases in the receiving-vessel ceases.

It is evident from the aforegoing description that the opening 12 may be left uncovered without danger of any unpleasant odor entering the room in which the commode is placed, and if a cover, as shown, is provided for the seataperture its only use would be to hide from sight the opening and contents of the receivwill state that I have found that the proportions of the seat-aperture, receiving-vessel, and draft flue or pipethat is, the relative horizontal, sectional, or superficial areas of these partsmay be as follows and produce good results: The area of the draft-flue same as area of aperture in seat, and the superficial area of the receptacle greater than the area of aperture in the seat. I also have found that the area of the draft-flue might be from sixty-three to seventy-five per cent. of area of the seataperturethat is, if area of said aperture be one hundred superficial square inches the horizontal sectional or superficial area of a draft-flue which is about ten feet high might be from sixty-three to seventy-five square inches, and still beneficial results be secured.

\Vhen the horizontal sectional or superficial area of the receptacle is greatly increased, the draft-flue would require to have more than one hundred superficial square inches.

It should be understood that ten feet elevation of the draft flue or pipe is the least or minimum which can be adopted with the best results. The draft flue or pipe could be increased in height and area without any bad results; but a reduction of its area would necessitate increase of its height to compensate for the reduction of area. This change would not be a departure from my invention.

The relative proportions of measurement above stated for the several passages, flue, and receiving-vessel will require to be changed to suit commodes, privies, and water-closets of large or small superficial area. The same proportions of parts as herein given for commodes may be adopted when my invention is applied to privies and water-closets instead of to commodes, this having been found by numerous experiments.

In Fig. 3 two commodes are shown, the branch draft-pipes O G of which are united into one pipe, 0, which has double the superficial area of a single draft-pipe such as is shown in Fig. 1. while each of the branch pipes has an equal superficial area to said pipe shown in Fig. 1.

I am aware that various plans are known and used for ventilating privies andwaterclosets; but they differ in operation from my invention, and have not given satisfactory results. I. therefore do not claim a commode or privy Ventilator, broadly; but

\Vhat I do claim is In a privy, commode, or closet, the combination of a seat having an aperture about ten inches by seven inches in area, a ventilating draft-flue havingadiameter of about six inches by six and one-half inches and a height of about ten feet, and a receptacle having a diameter of about twenty-two inches, the said relative proportions being followed accordingly as the size of the privy, commode, or closet is increased or decreased, substantially as and for the purpose described.

In testimony whereof I affix my signature in presence of two witnesses.

PROSPER BARDON.

'Witnesses:

S. T. BEATTY, It. IV. PARK. 

